Add REST API support

matterbridge.toml.sample

@@ -486,6 +486,28 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+###################################################################
+#API
+###################################################################
+[api]
+#You can configure multiple API hooks
+#In this example we use [api.local]
+#REQUIRED
+
+[api.local]
+#Address to listen on for API
+#REQUIRED 
+BindAddress="127.0.0.1:4242"
+
+#Amount of messages to keep in memory
+Buffer=1000
+
+#RemoteNickFormat defines how remote users appear on this bridge 
+#The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
+#The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
+#The string "{PROTOCOL}" (case sensitive) will be replaced by the protocol used by the bridge
+#OPTIONAL (default empty)
+RemoteNickFormat="{NICK}"
 
 ###################################################################
 #General configuration
@@ -572,6 +594,13 @@ enable=true
         #OPTIONAL - your irc channel key
         key="yourkey"
 
+    #API example
+    #[[gateway.inout]]
+    #account="api.local"
+    #channel="api"
+    #To send data to the api:
+    #curl -XPOST -H 'Content-Type: application/json'  -d '{"text":"test","username":"randomuser"}' http://localhost:4242/api/message
+
 #If you want to do a 1:1 mapping between protocols where the channelnames are the same
 #e.g. slack and mattermost you can use the samechannelgateway configuration
 #the example configuration below send messages from channel testing on mattermost to